Why do IG units have sealant leakage?

Sealant leakage is usually caused by incorrect sealant temperature or viscosity, poor spacer bending accuracy, glass size deviation, surface contamination, or unstable 2K sealing ratios.

How can I prevent sealant leakage in insulated glass units?

Maintain correct sealant temperature, ensure precise spacer bending, keep glass surfaces clean, use stable A/B sealant ratios, and consider using an automatic sealing robot for consistent quality.

Can equipment problems cause IG sealant leakage?

Yes. Butyl extruder temperature errors, 2K sealant mixing issues, worn nozzles, and inconsistent machine pressure can all lead to poor sealing performance and leakage.

Does manual sealing increase the risk of leakage?

Manual sealing often leads to uneven sealant lines and inconsistent corner filling. Using an automatic IG sealing robot significantly reduces leakage and improves product stability.

What is the best long-term solution for reducing IG sealant defects?

Investing in automated equipment—such as an IG sealing robot, automatic spacer bending machine, and calibrated 2K sealant pump—offers the most consistent and long-term solution to eliminate sealing problems.

Is LIJIANG Glass a factory or a trading company?

LIJIANG Glass is a professional manufacturer specializing in glass machinery and insulating glass production lines. We design, produce, and assemble equipment in our own factory to ensure strict quality control and efficient delivery.

What is the delivery time for your glass machinery?

Normally, the delivery time is 15–20 working days after receiving the deposit. For standard models, we usually have stock in the factory. If you have urgent requirements, we can arrange priority production.

What payment methods do you accept?

We accept common international payment methods including T/T (bank transfer), L/C, and other negotiable terms depending on the order volume and customer region.

How does LIJIANG Glass provide after-sales service?

We provide full technical support after delivery, including online troubleshooting, installation guidance, video assistance, and on-site service if necessary. Our engineers ensure smooth operation and long-term maintenance support for every customer.

Can LIJIANG Glass customize glass machinery?

Yes, we can customize glass processing equipment according to your factory layout, glass size, and production requirements. Our design team provides tailored solutions to optimize efficiency and cost performance.

LJBZ2030GF/LJBZ2535GF Insulated Glass Air-floating Production Line

LIJIANG Glass

More Details of Automatic Equipment

LJBZ2030GF Automatic Vertical Insulated Air-floating Glass Production Line

Basic Working Principle

Air-floating back plate, to avoid the wheel scraching the glass and leaving wheel marks;
Two pieces of IGUs or DGUs could be pressed and filled gas in once time, high work efficiency;
Argon-gas filling in pressing, automatic filling the glass in different areas according to the size of glass;
Germany Siemens PLC control system, touch screen interface for finger touch operating;
Automatic identification of coated glass and Low-E glass;
3 pairs of soft brushes could wash online Low-E glass and offline Low-E glass;
The washing parts adopt SS material and waterproof device;
Water tank with automatic temperature control and water washing system;
Air heating system;
Air Fan automatic start and stop setting;
Noise reduction system;
Online display of washing speed;
Intelligent intermittent work, saving-energy;
Adjustable external rotary positioning system of DGUs or IGUs;
Connection mode of aviation plug;
ERP system is optional.

Detailed Working Steps

In addition to the technical features of the ordinary production line and the inflatable production line, the LJBZ2030GF/LJBZ2535GF series fully automatic insulating glass production line adds an air flotation function in the transmission section between the washing section and the plate press section, making the glass surface seamless during the inspection process. No human contact and no equipment parts obscuring. The standard specifications are 2000mm*2800mm and 1500mm*2200mm.

Technical Parameter

	Unit	LJBZ2030GF	LJBZ2535GF	LJBZ2535DGF
Voltage		380V 50Hz 3P
Total Power	Kw	41	44.5	58
Washing Speed	m/min	2~10
Maximum Working Spped	m/min	45
Minimum Glass Size	mm	450*280
Maximum Glass Size	mm	20003000 20003500（Secondary tableting）	25003500 25004000（Secondary tableting） 2500*5000 （Secondary tablet pressing and auxiliary suction cup mechanism）
Flat Glass Thickness	mm	3·15（can be customized 3~30）
Washing Brushes	pieces	6
Maximum Thickness of insulated glass	mm	60
Total Gas Consumption	L/min	1200
Conveyer Roll Height	mm	520
*Dimension LWH*	mm	2020035003200	2380035003700	2720035003700

Technical Description

The Layout Diagram of Vertical Insulated Glass Air-floating Production Line

<div class="row"><div class="col-xs-12 c-f-field-type" data-field-type="text"><div class="form-group"><label for="text-1687849511047">Name</label><span>*</span><input type="text"  name="text-1687849511047" placeholder="Name" class="form-control" required data-msg-required="This field is required."></div></div></div><div class="row"><div class="col-xs-12 c-f-field-type" data-field-type="text"><div class="form-group"><label for="text-1687849511272">Phone Number</label><span>*</span><input type="text"  name="text-1687849511272" placeholder="Phone Number" class="form-control" required data-msg-required="This field is required."></div></div></div><div class="row"><div class="col-xs-12 c-f-field-type" data-field-type="email"><div class="form-group"><label for="email-1687849512071">E-mail Address</label><span>*</span><input type="email"  name="email-1687849512071" placeholder="E-mail Address" class="form-control" required data-msg-required="This field is required."></div></div></div><div class="row"><div class="col-xs-12 c-f-field-type" data-field-type="textarea"><div class="form-group"><label for="textarea-1687849513459">Your Inquiry Requirements</label><span>*</span><textarea  name="textarea-1687849513459" placeholder="Your Inquiry Requirements" class="form-control" rows="4" required data-msg-required="This field is required."></textarea></div></div></div><div class="row"><div class="col-xs-12 c-f-field-type" data-field-type="file"><div class="form-group"><label for="file-1687849515072">File Upload</label><input type="file"  name="file-1687849515072" placeholder="File Upload" class="form-control"></div></div></div><div class="row"><div class="col-xs-12 c-f-field-type" data-field-type="checkbox"><div class="form-group"><label for="checkbox-1687849517191" class="checkbox-label"><input type="checkbox" id="checkbox-1687849517191" name="checkbox-1687849517191" class=""><span class="checkbox-custom"></span><span class="input-title">I am not a robot</span></label></div></div></div>

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Automatic Vertical Insulated Air-floating Glass Production Line

More Details of Automatic Equipment

Basic Working Principle

Detailed Working Steps

Technical Parameter

Technical Description